Convert Erg per second per square centimetre to Watt per square metre
Convert Erg per second per square centimetre (erg/(s·cm²)) to Watt per square metre (W/m²) instantly and accurately.
Conversion Formula
W/m² = erg/(s·cm²) × 0.001
About Erg per second per square centimetre
The erg per second per square centimetre (erg/(s·cm²)) equals exactly 10⁻³ W/m² in SI (1 erg = 10⁻⁷ J; 1 cm² = 10⁻⁴ m²). The CGS irradiance unit used in classical electromagnetic theory, astrophysics, and older radiation physics literature. Numerically equal to the milliwatt per square metre. 1 erg/(s·cm²) = 10⁻³ W/m² = 1 mW/m².
About Watt per square metre
The watt per square metre (W/m²) is the SI coherent unit for heat flux density and irradiance. Solar irradiance at Earth's surface ≈ 1000 W/m²; solar constant ≈ 1361 W/m²; human skin radiative emission ≈ 100 W/m²; global average geothermal flux ≈ 0.087 W/m². Referenced in ISO 80000-4. 1 W/m² = 1 J/(s·m²) = 10⁻³ kW/m².
Quick Reference Table
| Erg per second per square centimetre (erg/(s·cm²)) | Watt per square metre (W/m²) |
|---|---|
| 1 erg/(s·cm²) | 0.001 W/m² |
| 2 erg/(s·cm²) | 0.002 W/m² |
| 5 erg/(s·cm²) | 0.005 W/m² |
| 10 erg/(s·cm²) | 0.01 W/m² |
| 25 erg/(s·cm²) | 0.025 W/m² |
| 50 erg/(s·cm²) | 0.05 W/m² |
| 100 erg/(s·cm²) | 0.1 W/m² |